Browsing Theses (MU) by Thesis Department "Mechanical and aerospace engineering (MU)"
Now showing items 21-40 of 204
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Characterization of mechanical properties and study of microstructures of friction stir welded joints fabricated from similar and dissimilar alloys of aluminum
(University of Missouri--Columbia, 2007)The objective of this research was to characterize the mechanical properties and study the microstructures of the friction stir welded joints to obtain the optimum process conditions that would result in the desired ... -
Characterization of mechanical properties of fused deposition modeling manufactured polycarbonate composites
(University of Missouri--Columbia, 2007)[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] The use of composites in all products - from sporting goods to bridges to satellites - is increasing due to the ability of composite structures to ... -
Characterization of the Embolisher, a device for cerebral embolic protection
(University of Missouri--Columbia, 2016)[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Trans-catheter aortic valve implantation (TAVI) is a new, minimally invasive solution to replacing diseased aortic valves. However, some of residual ... -
Compact oscillating heat pipe and development of fuzzy copper or wicking structures
(University of Missouri--Columbia, 2008)A central processing units (CPU) calculation speed is limited by the heat it produces. As the number of transistors and the clock speed of CPUs increase they become more powerful, but they also generate more heat which ... -
A comparison of modeling techniques: using the finite element method to determine local displacements in a human hip
(University of Missouri--Columbia, 2007)[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Artificial hip implant surgery is required by approximately 120,000 Americans each year. A typical hip replacement requires the surgical insertion of ... -
Comprehensive optimization for thermoelectric refrigeration devices
(University of Missouri--Columbia, 2005)A large market is currently in place for which thermoelectric (TE) technology can provide diverse energy solutions. This market should continue to grow as improvements are made to TE materials. In the last 10-15 years, ... -
Condition-based monitoring system for diagnostics and prognostics of centrifugal pumps
(University of Missouri--Columbia, 2016)Centrifugal pumps are the most commonly used pumps in industry. Therefore, maintenance is a very important part of the pump's life cycle. This work presents a systematic robust conditionbased monitoring process for diagnostics ... -
Control of arterial hemoglobin saturation in premature infants using H-infinity synthesis and performance specifications from best clinical practice
(University of Missouri--Columbia, 2013)This work details the development of a novel control system for regulating the Arterial Hemoglobin saturation (SpO2) of premature infants. An H-infinity synthesis method was used to derive multiple controllers to cover a ... -
Controlling the kinematics of the left ventricle to treat resistant hypertension
(University of Missouri--Columbia, 2018)The intention of this thesis is to present a novel controller design that eliminates hypertension in patients who suffer from resistant hypertension. The controller is designed by first translating the functionality of the ... -
Cruise flight optimization of a commercial aircraft with winds
(University of Missouri--Columbia, 2015)With high prices for fuel and airfare, companies are looking to minimize operational costs. Reducing aircraft fuel consumption is one strategy companies use to lower costs. During flights, commercial aircraft divide the ... -
Damage inspection of isotropic/multi-layer plates by time-frequency analysis of Lamb waves
(University of Missouri--Columbia, 2014) -
Damping and stiffening forces of a squeeze-film between two plates
(University of Missouri--Columbia, 2016)Silicon microstructures, especially sensors and actuators, are characterized by squeeze film between the moving elements and the fixed substrates. The effect of the squeeze film has been represented by the damping effect ... -
Dental composites reinforced with zinc oxide nanofillers
(University of Missouri--Columbia, 2012)[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Dental composites suffer from inadequate mechanical properties and formation of secondary caries, which could lead to the increased failure rate of ... -
The Design and analysis of a HA/PLA pedicle screw for spinal fusion
(University of Missouri--Columbia, 2011)Metallic pedicle screws have been widely used in the orthopaedic field to treat spinal diseases. Although spinal screws have improved over the last few decades, there is still sometimes a need for a second painful surgery ... -
Design and analysis of origami-inspired structures
(University of Missouri--Columbia, 2022)This work focuses on creating novel structures by combining elements of common origami patterns. Multiple different types of physical and computer models are implemented to represent and analyze the structures. These ... -
Design and experimental testing of metamaterial-based agitators
(University of Missouri--Columbia, 2016)Due to the low heat rejection capacity or huge water consumption of traditional cooling methods, many power plants are looking for a way that is eco-friendly and high efficient but low-cost to retrofit their current cooling ... -
The design and implementation of an endoscopic enabled mouth gag
(University of Missouri--Columbia, 2016)The purpose of this project was to design and produce a working prototype of a device that could be used in upper airway Otolaryngology surgeries to increase nasopharynx visualization. The nasopharynx is the anatomical ... -
Design and optimization of a Mars sample return mission with nuclear thermal rockets
(University of Missouri--Columbia, 2011)Nuclear thermal propulsion (NTP) is recognized as the only solution to human exploration of the near planets during the next several decades, but NTP currently receives little funding for development. In order to foster ... -
Design and optimization of dissipative elastic metamaterials and their applications for broadband blast and shockwave mitigation
(University of Missouri--Columbia, 2016)Elastic/Acoustic metamaterials comprise a new class of composite materials that possess unique effective material properties owing to their locally resonant substructures. Because of the inherent local resonance mechanism, ... -
Design and simulation analysis of MEMS parallel plate capacitor models for voltage conversion and power harvesting
(University of Missouri--Columbia, 2011)In environment, unwanted and undamped vibrations are abundantly available which can be converted into electrical energy and used for energy harvesting. This paper contains the design, modeling and simulation results of ...